Давайте проанализируем и заполним пропуски в предложениях:
A - A lot of people in different countries enjoy eating watermelons. A watermelon is a plant that came from Africa. It is a very popular edible fruit worldwide, 5) that it is the perfect fruit to eat.
B - About 6% of a watermelon is sugar, 2) some can be seedless which makes it very sweet.
C - In Japan, watermelons are grown in different shapes, 6) having more than 1,000 varieties.
D -
E - Watermelons also provide people with carbohydrates, which means 4) that instead of eating a piece of bread.
Теперь запишем выбранные цифры под соответствующими буквами:
A - 5
B - 2
C - 6
D - Нет варианта в списке
E - 4